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Immunization

Immunization (Vaccines)

Immunization is widely recognized as one of the greatest public health achievements of the twentieth century. Vaccines save lives, prevent the spread of diseases and reduce health care costs. Immunization programs are an important foundation of Ontario’s health system. We provide expertise in immunization and vaccine preventable disease.

For information specific to COVID-19, please visit the COVID-19 Vaccine webpage.

Sub Topics

Immunization Coverage

Learn more about PHO’s efforts in provincial surveillance of immunization coverage, including the annual coverage assessment of Ontario’s publicly-funded immunization programs.

Vaccine Safety

Resources, information and links related to vaccine safety, including surveillance and prevention of unwanted or unexpected health effects following vaccination.

Vaccine Preventable Diseases (VPDs)

Resources on preventing and controlling of vaccine-preventable diseases in Ontario.

Ontario Immunization Advisory Committee (OIAC)

The OIAC provides scientific and technical advice on vaccines and immunization matters, focusing on publicly funded vaccines and immunization programs in Ontario.

COVID-19 Vaccines

Resources for public health partners and health care providers to support implementation of COVID-19 vaccine programs.

Influenza Vaccine Effectiveness Program

Part of the Sentinel Practitioner Surveillance Network, this program monitors influenza vaccine effectiveness annually.

Featured

Surveillance Report

Epidemiology of measles in Ontario in 2024, as well as trends over time for 2013-2023.

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Updated 25 April 2024

Surveillance Report

This report describes immunization coverage for Ontario’s publicly-funded routine childhood immunization programs for the 2019-20 to 2022-23 school years.

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Published 28 March 2024

Form or Tool

Interactive tool that provides vaccine safety surveillance data in Ontario by trends over time, age and sex, public health unit, type of vaccine and type of adverse event.

Webpage
Updated 7 Feb 2024

Infographic

A visual summary of AEFIs reported in Ontario following vaccines administered in 2022 (excluding COVID-19 vaccines).

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Updated 7 Feb 2024

Evidence Brief

Learn about interventions and strategies to implement catch-up immunizations that may have been missed due to the COVID-19 pandemic.

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Updated 17 Oct 2022

To obtain or inquire about an immunization record, or for general immunization information, please contact your local public health unit.

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Contact the Department

Immunization and Vaccine Preventable Diseases

ivpd@oahpp.ca

Updated 19 April 2024
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